Adjusting the grinder while it is running avoids going too far compressing grinds still sticking to the burrs and stalling the motor. Your grinder dial may not be calibrated to a burr chirping zero point. With clean, running burrs you should be able to readjust your dial to zero at the chirp

Actually, yea that would make much more sense, where the water inlet supplies water to both the boiler and to the hydraulic circuit and the extra fitting on the side is the drain. This is how my Cosmo hydraulic is plumbed too. I was thinking the tube going into the boiler at the 3-way valve was always open and forgot

Yeah ok, I understand. I've been playing with it a bit, and don't really see the utility in it. For now I have it set such that with no portafilter in place I get 250mL out of it in 25 seconds. This is a recommendation I read on Clive coffee, and it seems reasonable. The pressure reading from the manometer

It works Here's how I do it. 1 bottle of lotus (filled with my bestmax filter which has 22 gh and 28 kh) Each drop to this bottle gives 0.46 ppm hardness 48 drops (divided between magnesium and calcium) 2 drops to 31ml sample = 20-23 ppm hardness I need to experiment more

You can clearly see it leaking above the oat milk from the copper piping during the beginning cutaway